21438036

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{3793}}^1$

素因数の和:3960

約数の個数: 36

約数和(自身を含む): 54550132

約数和(自身を除く): 33112096

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1413, 1884, 2826, 3793, 5652, 7586, 11379, 15172, 22758, 34137, 45516, 68274, 136548, 595501, 1191002, 1786503, 2382004, 3573006, 5359509, 7146012, 10719018, 21438036]

約数ペア:

[(1, 21438036), (2, 10719018), (3, 7146012), (4, 5359509), (6, 3573006), (9, 2382004), (12, 1786503), (18, 1191002), (36, 595501), (157, 136548), (314, 68274), (471, 45516), (628, 34137), (942, 22758), (1413, 15172), (1884, 11379), (2826, 7586), (3793, 5652)]